This is the 15990th most frequent Russian word.
прудов
"Прудов" means "ponds" (genitive plural form of "пруд").
Here, 'прудов' is the genitive plural form of 'пруд,' used to indicate possession or quantity.
На даче есть несколько красивых прудов.
There are several beautiful ponds at the country house.
In this sentence, 'прудов' modifies 'воду,' highlighting the source of the water using the genitive plural case.
Эколог исследовал воду из разных прудов.
The ecologist studied water from different ponds.
Here, 'прудов' is used with 'около,' indicating proximity and requiring the genitive plural form.